Fred: (to Joe) You don't have The Book? Oh, man. This time we are really cooked. I knew it wouldn't work. There is no way we are going to find The Book here in the Stone Age. We'll be lucky if we find anybody who can even talk.

Sam: According to my calculations, we've proabably landed in the year 40,000 B.C. We are completely naked. We have no tools, weapons, or supplies. But we still have one thing.

Fred: Goosebumps?

Sam: No, you jerk. Knowledge. Brainpower. All the learning of modern man. Out there in the prehistoric world, we can still be kings, or at least very popular guys.